ClinVar Miner

Submissions for variant NM_022168.4(IFIH1):c.1486G>A (p.Ala496Thr)

gnomAD frequency: 0.00003  dbSNP: rs763096939
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Total submissions: 1
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Labcorp Genetics (formerly Invitae), Labcorp RCV001035286 SCV001198610 uncertain significance Singleton-Merten syndrome 1; Aicardi-Goutieres syndrome 7 2023-01-31 criteria provided, single submitter clinical testing This variant is present in population databases (rs763096939, gnomAD 0.007%). This sequence change replaces alanine, which is neutral and non-polar, with threonine, which is neutral and polar, at codon 496 of the IFIH1 protein (p.Ala496Thr). This variant has not been reported in the literature in individuals affected with IFIH1-related conditions. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) has been performed at Invitae for this missense variant, however the output from this modeling did not meet the statistical confidence thresholds required to predict the impact of this variant on IFIH1 protein function. ClinVar contains an entry for this variant (Variation ID: 834571).

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